<span><span>−<span>5x</span></span>−<span>15y</span></span>−<span>5 is what i get</span>
Your answer is 104 square inches because you have to find the area of the top rectangle by multiplying 12 x 7, then find the area of the bottom square by multiplying 5 x 4, and then add both answers together which equals 104 square centimeters ;)
The half of a cake has volume which can be divided by 3